Paper windening machine



Oct. 8, 1940. H. G. BURRILI.

PAPER WIDENING MACHINE Filed April 25, 1938V 4 Sheets-Sheet 2 Oct. 8, 1940. H. G. BURRILI. 2,217,306

FAPER WIDENING MACHINE Filed April 25, 1938 4 Sheets-Sheet 3 Oef. 8, 1940. H, G, BURRlLL 2,217,306

PAPER WIDENING MACHINE Fil'ed April 25, 1958 4 Sheets-Sheet 4 y 50- and one of each pair of edges treated with an aping `devices l0 and 20 respectively which remove 50 Patented Oct. 8, 1940 .l

UNITED STATES PATENT4 OFFICE PAPER WIDENING DIACHINE Harold Griswold Burrill, Baltimore, Md., assignor to Elk Paper Manufacturing Company, Childs, Md.

Application April 25, 1938, Serial No. 204,253 3 Claims. (Cl. 154-42) This invention refers to paper manufacture and .nection similar in structure to the other portions more particularly to a machine for increasing the of the material. The paper is continued through Width of manufactured paper indefinitely. It has the conventional processing in the usual manner among its objects to provide a machine capableof to be used to suit the requirements and its com- 5 taking rolls of paper and joining them together mercial end.

lengthwise so their width will be increased pro- In the drawings which illustrate an embodiportionally after being passed through the device. ment of this invention- Another object is to treat the edges of the web Figure 1 represents a side sectional view of the of paper to be joined so they will combine toarrangement preferred for the processing of the gether unncticeably and particularly without inlongitudinal edge portions of webs of paper for 10 creasing the thickness of the webs of paper at joining same homogeneously together and inthe joint. A further object is to make the paper creasing the final width of the product, joint of a homogeneous nature Where it is com- Figure 2 is a plan View of the machine embodybined through the process, and as strong at the ing this invention and designed to join lengths of joint as it is in the general body thereof. `Still paper longitudinally and to provide a combined 15 another object is to have the construction of the product of maximum width, device as simple as feasible and provided with Figure 3 is a side view of the abrasing mechasuch adjustments as will enable it to do the work nism used in the machine indicated in Figure 2, eiiiciently and economically. Other objects will taken along the line 3 3,

become apparent as the invention is more fully Figure 4 is an enlarged detail of the joint ar- 20 set forth. rangement mechanism of the machine,

The joining of paper edges together to increase Figure 5 is a detail in perspective oi the grindthe Width has in general been limited to the ing Wheel preferably used in the device, application of paste thereon and the using of a Figure 6 is a detail of the adhesive applying roller to press same together. This arrangedevice used, Y ment has the disadvantage of making the joint Figure 7 indicates the arrangement for joining heavy and noticeable, and results in undesirable an indefinite number of Widths of paper to make warping when placed in commercial use which an indefinitely wide product.

affects the uniformity of its structure and has a Similar reference characters refer to similar tendency to open up the connection. It also has parts throughout the drawings. 30 a tendency to visibly indicate Where the joint is; In the view shown in Figure l, the roll i, oarwhich is greatly objectionable. Needless to say, ries a supply or web of paper 2 which is to be the web of paper in this case is stronger at the longitudinally combined to another length or web jointed edge than in the main body. In this inof paper i2 carried on another similar roll Il,

vention, which has been developed after considermounted adjacent to it on the frame S of the ma- 35 able investigation and empirical trials, the edge chine. Each roll or web of paper to be combined portions ofthe rolls of paper passed through the to another has the joining edges trimmed o machine are scoured oi to a so-called feather straight by slitters 6|, and the finished edges edge by grinding Wheels suitably inclined and anground off to a feather edge by grinding wheels gularly directed, and contacting the edges of the 5 and i5 respectively. The grinding is accom- 40 webs of paper longitudinally. The speed of rotaplished by tilting the grinding wheels to a slight tion of the grinding Wheels is controlled suitably angle with respect to the paper edge portions each and the angle of inclination is adjustably detercontacts with. Tables i and id are mounted on mined to suit the Work to be done in each case. the opposite side of the web or paper to that on During the grinding process, special care is taken which the grinding wheels make contact, and 5 tovremove the ground-off material so that it will form bases against which the web or paper can not get into the paper or affect the process derest while the pressure of the grinder wheels is teriorately. After the edges 4are ground off to against the web or paper. Adjacent the carbothe fine curved bevel, they are slightly moistened rundum grinder wheels 5 and i5 are dust removplication of adhesive. Pressure is then exerted to the grindings of the paper and Wheels to prebring the edges firmly together and make the vent same getting into the finished product. joint homogeneous in thickness and strength with After the feather edges are ground on the edge that of the rest of the paper. Heat is applied to portions of the web or paper, the webs or papers remove the excess moisture and make the conare carried towards the rollers 'i and il, the edge 55 portions o! the web or paper being treated with moistening and adhesive applying mechanism 6 and I6 respectively to enable the paper to be ren- ',dered pliable and loosened and more easily combined together homogeneously, rather than simply stuck together.

From thence the connected paper lengths are carried to heating cylinders Sand I8 which press the edge portions firmly together and remove the excess moisture at the same time. 'I'his renders the paper lengths ready and of the combined width of that of the two or more widths of rolls of paper which have been treated previously in the machine. Suitable guide rolls 2| are provided throughout the machine to carry the webs of papers in the desired directions and lessen the tendency to break or tear. 'I'he brackets I9 serve to carry the various rollers and rolls and connect them with the frame 9 through the shafts 3|, forming axles for the various rolls and rollers, as indicated in the drawings. Motor 4i mounted on the axle of the receiving roll provides the necessary power and connections for rotating these members to give the webs or papers the desirable movements and processes. A motor 5I, through belts 52 drives the grinding rolls.

The tables 4 and Il are preferably made o suitable material to enable the grinder wheels to grind the paper edge portions accurately and without tearing or mutilation, to a feather edge. 'Ihe tables are supported on the frame 9. The dust remover preferably consists of a vacuum cleaner mouthpiece held closely to the side of the web or paper edge being ground. The conventional piping is provided for the vacuum cleaner and is run to a dust collector not shown. VThe adhesive 53 is placed in a pan 22 and is gathered up by the roller i6 of the mechanism and applied to the contact edge surfaces of the web or paper that have been feathered However, the following features should be noted in connection with the featheringn The grinding is not strictly on a straight bevel but on al slight curve or dipas indicated on the paper edge portions 3 and I3 respectively. This dip in the feathered edge portions enables the adhesive to be used effectively without' the possibility of a hump or misalignment of the edges arising when the papers are pressed together. Without this dip, a misalignment will occur to disfigure the paper and affect its ilnal finish. After the webs of paper widths are combined, the finished web or paper 32 is carried to a supply or receiving roll 24 of the double width and wound up on same. The guide rolls 36 guide the web or paper to this receiving roll 24. 'I'hey are all mounted on the frame 9 as indicated.

The grinding wheel mechanisms are similar to 'each other and the details in Figure 3 show `the general construction. A channel --plate 25,

preferably designed as indicated in the drawings, is attached to the frame 9 by the bolts 26 which pass through slots 28 in the frame to permit a sliding adjustment in a horizontal direction. In addition the plate is provided with lugs 29 which are screw threaded to take vertically adjusting same locked together as desired. The projecting arm 43 is aligned with the adjusting screws so as tol be adjustably held by same in position. This last arrangement permits the grinder wheel to be tilted accurately to grind the edge' portion ofthe web or paper to rthe desired form, bevel or curve. The width ofthe edge portion ground oil' can also be regulated. The other adjustments arrange for the grinding of the web or paper on a gradual incline so that the action will be as smooth and gentle as possible.

In the operation of the machine,'the webs or papers from the rolls are carried across the guide rolls until they are brought to the receiving roll. where they are wound on to provide the necessary tautness. The adjacent webs or papers are combined under high pressure; then passing to the heating rolls to take out the excess moisture and set the paper completely, after which it proceeds to the receiving rolls and made ready for the commercial world. The purpose of the guide rolls and their operation do not require explanation. 'Ihe abrasive action of the grinding wheels not only affords the bevelling of the edge portions oi' the paper to the desired curve but also roughens it to give the adhesive more effective holding power.

'I'he use of several widths of papers is a matter dependent on the facilities available as there is no theoretical limit to the width that can be finally obtained. Therefore, with this in mind, the drawings havebeen made to show the use of webs of papers in excess of two, to meet the needs of plural arrangements in widths of papers to be combined. 'I'his view in mind, the application has been drawn to include all forms that may be made, except as limited by the prior'art, for it is to be appreciated that other forms than those indicated could be constructed, using the saine principles and coming within the scope of the appended claims.

Having thus described the invention what is claimed is:

1. In a machine of the class described, the combination of a plurality of paper supply rolls supporting a plurality of webs of paper,`means for feeding said webs of paper, a plurality of table means for supporting the webs of paper as they travel, said table means being in spaced relation, a plurality of grinding wheels each in juxtaposition to one of said table means, said grinding wheels having substantial width with the axes thereof angularly disposed in a horizontal plane and tilted in a vertical plane with respect to the longitudinal edge portions of each of the. travelling webs whereby substantial portions of the grinding surfaces are in contact with the longitudinal edge portions of the travelling webs to feather said edges, means for rotating the grinding wheels, means for applying adhesive to at least one of said feathered edges, and means for pressing the said edge portions together.

2. In a machine of the class described,` the combination of a plurality of paper supply rolls supporting a plurality of webs of paper, slitters for trimming Webs of paper positioned in predetermined relation to the rolls, means for feeding said webs of paper, a plurality of table means for supporting the Webs of paper as they travel, said table means being in spaced relation, a plurality of grinding wheels each in juxtaposition to one of said table means, said grinding Wheels having substantial width with the axes thereof angularly disposed in a horizontal plane and tilted in a vertical plane with respect to the longitudinal edge portions of each of the travelling webs whereby substantial portions of the grinding surfaces are in contact with the longitudinal edge portions of the travelling webs to feather said edges, means for rotating the grinding wheels, means for applying adhesive to at least one of said feathered edges, and means for pressing the said edge portions together.

3. In a machine of the class described, the combination of a plurality of paper supply rolls supporting a plurality of Webs of paper, slitters for trimming webs of paper positioned in predetermined relation to the rolls, means for feeding said Webs of paper, a plurality of table means for supporting the webs of paper as they travel, said I table means being in spaced relation, a plurality vof grinding wheels each in juxtaposition to one of said table mea-ns, said grinding Wheels having substantial width with the axes thereof angularly disposed in a horizontal plane and tilted in a vertical plane with respect to the longitudinal edge 'portions of each of the travelling Webs whereby substantial portions of the grinding surfaces are in contact with the longitudinal edge portions of the travelling webs to feather said edges, means for rotating the grinding wheels, means for removing the material caused by said grinding rolls, means for applying adhesive to atleast one of said feathered edges, and means for pressing the said edge portions together.:

HAROLD GRISWOLD BURRILL. 

